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DTC P0402 EGRC-BPT VALVE FUNCTION EC-887 [VG33E] C D E F G H I J K L M A EC Diagnostic Procedure UBS00DKA 1. CHECK HOSE Check vacuum hose for clogging and improper connection. OK or NG OK >> GO TO 2. NG >> Repair or replace vacuum hose. 2. CHECK EXHAUST SYSTEM Check exhaust system for collapse. OK or NG OK >> GO TO 3. NG >> Repair or replace exhaust system. 3. CHECK ORIFICE Check if orifice is installed in vacuum hose between EGRC-BPT valve and EGRC-solenoid valve. OK or NG OK >> GO TO 4. NG >> Replace vacuum hose. 4. CHECK EGRC-BPT VALVE Refer to EC-889, "Component Inspection" OK or NG OK >> GO TO 5. NG >> Replace EGRC-BPT valve. |